Role of nonlocal probes of thermalization for a strongly interacting non-Abelian plasma

The thermalization process of an out-of-equilibrium boost-invariant strongly interacting non-Abelian plasma is investigated using a holographic method. Boundary sourcing, a distortion of the boundary metric, is employed to drive the system far from equilibrium. Thermalization is analyzed in the full...

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Bibliographic Details
Published in:Physical review. D 2016-07, Vol.94 (2), Article 025005
Main Authors: Bellantuono, L., Colangelo, P., De Fazio, F., Giannuzzi, F., Nicotri, S.
Format: Article
Language:English
Subjects:
Boundaries
Correlation analysis
Cosmology
Distortion
Dynamical systems
Gravitation
Operators
Sourcing
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Summary:The thermalization process of an out-of-equilibrium boost-invariant strongly interacting non-Abelian plasma is investigated using a holographic method. Boundary sourcing, a distortion of the boundary metric, is employed to drive the system far from equilibrium. Thermalization is analyzed in the fully dynamical system through nonlocal probes: the equal-time two-point correlation function of large conformal dimension operators in the boundary theory, and Wilson loops of different shapes. A dependence of the thermalization time on the size of the probes is found, which can be compared to the result of local observables: the onset of thermalization is first observed at short distances.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.94.025005